EP 2955544 A1 20151216 - A TOF camera system and a method for measuring a distance with the system
Title (en)
A TOF camera system and a method for measuring a distance with the system
Title (de)
TOF-Kamerasystem und Verfahren zum Messen einer Entfernung mit dem System
Title (fr)
Système de caméra TOF et procédé permettant de mesurer une distance avec ledit système
Publication
Application
Priority
EP 14171985 A 20140611
Abstract (en)
The invention relates to a method for measuring a distance between an object of a scene and a Time-Of-Flight camera system, and providing a depth map of the object, the Time-Of-Flight camera system comprising an illumination unit, an imaging sensor having a matrix of pixels and image processing means, the method being characterized by the following steps: modifying in a discrete way the illumination of said illumination unit in order to illuminate elementary areas of the scene with different incident intensities, respectively, for distinguishing the direct incident light beams from the indirect incident light beams; receiving onto the pixels of the matrix of the sensor the beams reflected by said elementary areas and providing the image processing means with corresponding data; processing the said corresponding data for eliminating the influence of the indirect light beams in the depth map of the object.
IPC 8 full level
G01S 7/4911 (2020.01); G01S 7/493 (2006.01); G01S 17/10 (2020.01); G01S 17/89 (2020.01); G01S 17/894 (2020.01); G01S 17/46 (2006.01)
CPC (source: CN EP KR US)
G01S 7/4876 (2013.01 - US); G01S 7/4911 (2013.01 - CN EP KR US); G01S 7/493 (2013.01 - CN EP KR US); G01S 17/10 (2013.01 - US); G01S 17/46 (2013.01 - KR); G01S 17/89 (2013.01 - CN US); G01S 17/894 (2020.01 - EP KR US); G01S 17/46 (2013.01 - EP US)
Citation (search report)
- [X] US 2013148102 A1 20130613 - OGGIER THIERRY [CH]
- [X] US 2014055771 A1 20140227 - OGGIER THIERRY [CH]
- [X] US 2014049609 A1 20140220 - WILSON ANDREW [US], et al
- [X] FALIE D ET AL: "Distance errors correction for the Time of Flight (ToF) cameras", IMAGING SYSTEMS AND TECHNIQUES, 2008. IST 2008. IEEE INTERNATIONAL WORKSHOP ON, IEEE, PISCATAWAY, NJ, USA, 10 September 2008 (2008-09-10), pages 123 - 126, XP031354709, ISBN: 978-1-4244-2496-2
- [X] FALIE D ET AL: "Further investigations on ToF cameras distance errors and their corrections", CIRCUITS AND SYSTEMS FOR COMMUNICATIONS, 2008. ECCSC 2008. 4TH EUROPEAN CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, 10 July 2008 (2008-07-10), pages 197 - 200, XP031315023, ISBN: 978-1-4244-2419-1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2955544 A1 20151216; EP 2955544 B1 20200617; BE 1022486 B1 20160503; CN 106662651 A 20170510; CN 106662651 B 20190806; JP 2017517737 A 20170629; JP 2021039131 A 20210311; JP 7191921 B2 20221219; KR 102432765 B1 20220817; KR 20170041681 A 20170417; US 10901090 B2 20210126; US 2017123067 A1 20170504; WO 2015189311 A1 20151217
DOCDB simple family (application)
EP 14171985 A 20140611; BE 201400578 A 20140725; CN 201580036607 A 20150611; EP 2015063015 W 20150611; JP 2016572252 A 20150611; JP 2020195625 A 20201126; KR 20177000302 A 20150611; US 201515317367 A 20150611